GE Dynamic Positioning in the Running for IET Award

MarineLink.com
Tuesday, October 08, 2013

New software from GE’s Power Conversion business that enables its Dynamic Positioning (DP) systems to save significant amounts of fuel and put less wear and tear on vessel propulsion equipment is on the shortlist to win an Institution of Engineering and Technology (IET) Innovation Award this year.

A DP system holds a vessel in position without the aid of anchors, using only propellers, rudders and thrusters. “Energy Efficient Dynamic Positioning For Ships” was developed from a comparison of concepts through to final production code using model-based design. The new mode was entered in the Model-Based Engineering category for the IET Innovation Awards, which attracted more than 400 entries. The awards will be announced in London on November 20.

During development of the new Energy Efficient DP, experts at GE Power Conversion used model-based engineering to allow the production controller to be used in simulations to ensure accurate results. Studies making use of weather patterns for a full year showed that a 12 percent reduction in fuel usage could be expected for representative scenarios. At the same time, the wear in terms of stick-slip cycles on the thrusters and propulsion system could be reduced by a factor of 10 or more over the same period.

DP normally aims to maintain the position of the vessel at a single defined point. This leads to constant corrections by the thrusters as the vessel makes small motions about this point. The energy efficient mode allows the operator to define an aim circle within which the vessel is permitted to move. A novel predictive control algorithm predicts future motion and only updates the thrust demands if the vessel is predicted to move close to or outside the permitted area. Far fewer small corrections are made, reducing fuel consumption, emissions and equipment maintenance requirements.

The new mode is now available for sale to customers in the form of software upgrades to existing DP systems. The predictive algorithm is not very computer intensive, making it possible to use it in most existing controllers without hardware changes.

gepowerconversion.com
 

Maritime Reporter February 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Technology

China's Maritime Advances Worry US

The Director of U.S. National Intelligence, James Clapper, has expressed his concern at the progress of China in maritime zones it shares with its neighbors, accused

Davie Building LNG-powered Ferries

Canadian shipbuilder Davie held a keel laying ceremony for MV Armand-Imbeau II, marking the beginning of the hull assembly for this first of two sisterships under

Keppel FELS to Deliver 100th Jackup Rig

Keppel FELS, a wholly owned subsidiary of Keppel Offshore & Marine (Keppel O&M) is on track to deliver PV Drilling VI, a KFELS B Class jackup rig, to PV Drilling Overseas (PVDO),

Marine Power

China's Maritime Advances Worry US

The Director of U.S. National Intelligence, James Clapper, has expressed his concern at the progress of China in maritime zones it shares with its neighbors, accused

Davie Building LNG-powered Ferries

Canadian shipbuilder Davie held a keel laying ceremony for MV Armand-Imbeau II, marking the beginning of the hull assembly for this first of two sisterships under

Britain Should Appoint Ambassador to the Arctic

The House of Lords Arctic Committee urged that UK should follow the example set by France, Singapore and Japan and appoint an Ambassador for the Arctic.   The

News

Spanish Boat Wins Leg of Ocean Race

Spanish boat Mapfre has claimed victory in the Auckland leg of the of the round-the-world Volvo Ocean Race from Sanya, China, to Auckland.   The Alicante-based

China's Maritime Advances Worry US

The Director of U.S. National Intelligence, James Clapper, has expressed his concern at the progress of China in maritime zones it shares with its neighbors, accused

British Queen to Name New Ship

Queen Elizabeth II will christen P&O Cruises’ new flagship Britannia in Southampton, England, on March 10. She will be accompanied by her husband, Prince Philip, the Duke of Edinburgh.

 
 
Maritime Careers / Shipboard Positions Maritime Standards Naval Architecture Offshore Oil Salvage Ship Electronics Ship Repair Ship Simulators Shipbuilding / Vessel Construction Winch
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.2581 sec (4 req/sec)